CN217369737U

CN217369737U - High-temperature sulfur melting air-flotation purification device

Info

Publication number: CN217369737U
Application number: CN202221015967.3U
Authority: CN
Inventors: 汤志刚; 王晴东; 姜爱国; 陈善龙; 仇保荣; 刘安南; 王斌
Original assignee: Jinan Metallurgy Chemical Equipment Co ltd
Current assignee: Jinan Metallurgy Chemical Equipment Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-06
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a high-temperature sulfur melting air-floating purification device, which comprises an air-floating tank, wherein at least a heat-insulating jacket is arranged outside the air-floating tank, a heating channel for heat-conducting fluid flow is formed among the heat-insulating jacket, the air-floating tank and a pipeline, and a heat-conducting fluid inlet and a heat-conducting fluid outlet are arranged on the heating channel; heat-conducting fluid with the temperature higher than the solidification point temperature of the sulfur is introduced into the heating channel; the high-temperature molten sulfur added with the purifying agent enters the air flotation tank through the sulfur inlet of the raw material flow, is repeatedly purified by the purifying component and then flows out of the sulfur outlet; the air-float impurities are discharged from an air-float impurity discharge port arranged at the upper part of the air-float tank. All equipment runs in a heat-conducting oil high-temperature jacket above 130 ℃, so that sulfur condensation is prevented, the requirement of liquid sulfur treatment is met, and a purifying agent is added to high-temperature molten sulfur, so that impurity separation is facilitated. The dissolved gas releaser can uniformly release the dissolved gas carried in the liquid, and is favorable for floating separation of impurities. The air-float impurity baffle is favorable for preventing impurities from flowing into the air-float tank to purify one side of the sulfur.

Description

High-temperature sulfur melting air-flotation purification device

Technical Field

The utility model relates to a refined technical field that the produced sulphur cream that contains impurity of coking industry HPF coal gas desulfurization, in particular to high temperature melts sulphur air supporting purifier.

Background

The sulfur paste containing impurities (mainly containing tar, coal powder and coke powder) produced by HPF gas desulfurization in the coking industry is treated as a dangerous waste, has high impurity content, is not subjected to purification treatment, and has the risks of environmental pollution and social hazard.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the prior art, the utility model provides a high-temperature sulfur melting air-floating purification device.

The utility model provides a technical scheme that its technical problem adopted is: the high-temperature sulfur melting air-floating purification device comprises an air-floating tank, wherein a heat-insulating jacket is at least arranged outside the air-floating tank, a heating channel for heat-conducting fluid flow is formed among the heat-insulating jacket, the air-floating tank and a pipeline, and a heat-conducting fluid inlet and a heat-conducting fluid outlet are formed in the heating channel; heat-conducting fluid with the temperature higher than the solidification point temperature of the sulfur is introduced into the heating channel; the high-temperature molten sulfur added with the purifying agent enters the air flotation tank through the raw material liquid sulfur inlet, is repeatedly purified by the purifying component and then flows out of the sulfur flowing outlet; the air-float impurities are discharged from an air-float impurity discharge port arranged at the upper part of the air-float tank.

Furthermore, a heat-conducting fluid inlet on the heat-insulating jacket is arranged at the lower part of the heat-insulating jacket, and a heat-conducting fluid outlet is arranged at the top of the heat-insulating jacket.

Furthermore, a heat-insulating jacket is also arranged outside the pipeline connected with the air flotation tank.

Further, the heat-conducting fluid is heat-conducting oil, and the heat-conducting oil heats the purification device and enables the temperature of the purification device to be maintained at a temperature which ensures that the sulfur is in a fluid state.

Further, be equipped with air supporting impurity baffle in the air supporting jar, air supporting impurity baffle divide into two cavitys with the air supporting jar, and air supporting impurity baffle middle part is equipped with the opening, and high temperature molten sulfur gets into the first cavity of air supporting jar through raw materials liquid sulfur import, and the high temperature molten sulfur through preliminary purification gets into the second cavity through the opening of air supporting impurity baffle.

Furthermore, the purification component comprises a dissolved air pump connected with the second cavity, the dissolved air pump sucks relatively clean liquid sulfur and air from the second cavity, then conveys the sulfur and the air into a dissolved air bag connected with the dissolved air pump, and then enters a dissolved air releaser positioned in the first cavity along a pipeline connected with the dissolved air bag to release bubbles through the dissolved air releaser.

Furthermore, a discharge pipe connected with the air flotation impurity discharge port is arranged in the air flotation tank, a plurality of impurity grooves with upward openings are arranged on the discharge pipe, and the impurity grooves are communicated with the discharge pipe.

Further, the bubbles adhere to the hydrophobic sulfur-melting particles in the rising process in the first cavity to form gas-carrying flocs with the density smaller than that of water-melting sulfur, the gas-carrying flocs carry impurities in the liquid sulfur onto the liquid surface under the action of buoyancy, and the impurities are discharged out of the air flotation tank after being deposited through the impurity tank and the discharge pipe.

To sum up, the utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. all the devices operate in a heat-conducting oil high-temperature jacket above 130 ℃, prevent the sulfur from condensing, meet the requirements of liquid sulfur treatment,

2. and a purifying agent is added to the high-temperature molten sulfur, so that the impurity separation is facilitated.

3. The dissolved gas releaser can uniformly release the dissolved gas carried in the liquid, and is favorable for floating separation of impurities.

4. The air-float impurity baffle is favorable for preventing impurities from flowing into the air-float tank to purify one side of the sulfur.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

In the figure:

1. an air flotation tank; 2. a gas dissolving bag; 3. an air floatation impurity baffle; 4. a dissolved air releaser; 5. a liquid level meter; 6. an air floatation impurity discharge port; 7. a dissolved air pump; 8. a heat-preserving jacket; 9, an impurity groove; 10 discharging the pipe; 11, a raw material liquid sulfur inlet; 12 a heat transfer fluid inlet; 13 a heat transfer fluid outlet; 14 a liquid sulfur outlet; 15 is provided with an opening; 16 gaps; 17 heating the channel; 18 a first cavity; 19 second cavity.

Detailed Description

The features and principles of the present invention will be described in detail below with reference to the accompanying drawings, and the illustrated embodiments are only for explaining the present invention, and do not limit the scope of the present invention.

As shown in figure 1, the high-temperature molten sulfur air-floating purification device comprises an air-floating tank, and a liquid level meter 5 for detecting the liquid height in the air-floating tank is arranged at the top of the air-floating tank. The high-temperature molten sulfur added with the purifying agent enters the air flotation tank through the raw material liquid sulfur inlet 11, is repeatedly purified by the purifying component and then flows out from a sulfur flowing outlet arranged on the air flotation tank. The raw material liquid sulfur inlet 11 sends high-temperature molten sulfur to a position close to the bottom of the air floatation tank in the air floatation tank. Adding a purifying agent, feeding the impurity-containing high-temperature molten sulfur into an air floating tank, and controlling the liquid level below an air floating impurity discharge port 6 according to the detection of a liquid level meter 5.

At least a heat-insulating jacket 8 is arranged outside the air-floating tank, a heating channel 17 for sealed heat-conducting fluid flow is formed among the heat-insulating jacket 8, the air-floating tank and the pipeline, and the heat-conducting fluid can fully flow in the heating pipeline and heat the purification device. The heating channel 17 is provided with a heat-conducting fluid inlet 12 and a heat-conducting fluid outlet 13, so as to ensure the temperature of the whole purification device. In order to better ensure the temperature of the purification device, a heat-insulating jacket 8 can be additionally arranged on the pipelines connected with the air flotation tank. Heat-conducting fluid with the temperature higher than the solidification point temperature of the sulfur is introduced into the heating channel 17, so that the sulfur is prevented from being solidified. After the purification treatment, the air-float impurities are discharged from an air-float impurity discharge port 6 arranged at the upper part of the air-float tank.

The heat-conducting fluid inlet 12 on the heat-insulating jacket 8 is arranged at the lower part of the heat-insulating jacket 8, and the heat-conducting fluid outlet 13 is arranged at the top of the heat-insulating jacket 8, so that the heat-conducting fluid can be ensured to fully flow, and the purifying device can be better heated.

The heat-conducting fluid is heat-conducting oil, and the high-temperature heat-conducting oil heats the purification device and maintains the temperature of the purification device at the temperature which ensures that the sulfur is in a fluid state. Other heat-conducting fluids can be used for heating and heat preservation of the purification device instead, and the purification device is not limited to heat-conducting oil.

Be equipped with air supporting impurity baffle 3 in the air supporting jar, air supporting impurity baffle 3 divide into two cavitys with the air supporting jar, and for the convenience of description, two cavitys of definition air supporting jar are first cavity 18 and second cavity 19, and first cavity 18 corresponds raw materials liquid sulphur import 11, and second cavity 19 corresponds air supporting impurity discharge port 6 and liquid sulphur export 14. The high-temperature molten sulfur added with the purifying agent enters a first cavity of the air-floating tank through a raw material liquid sulfur inlet 11, and the high-temperature molten sulfur subjected to primary purification enters a second cavity through an opening 15 of the air-floating impurity baffle 3. And the middle part of the air-floating impurity baffle 3 is provided with an opening 15, the top of the air-floating impurity baffle 3 is also provided with a notch 16, namely the notch 16 is arranged between the top of the air-floating impurity baffle 3 and the inner wall of the air-floating tank, so that the air-floating flocs with impurities can cross the air-floating impurity baffle 3 from the position of the notch 16 and enter the impurity tank 9 at the top corresponding to another cavity, and better impurity removal is completed. Specifically, the partially purified liquid sulfur enters the second cavity 19 on the right side of the air-floating tank from the first cavity 18 through the notch 16, the liquid sulfur in the second cavity 19 carries partial air to enter the air-dissolving bag 2 through the suction of the air-dissolving pump 7, and then enters the first cavity 18 of the air-floating tank through the air-dissolving releaser 4 to be repeatedly purified.

The purification component comprises a dissolved air pump 7 connected with the second cavity, the dissolved air pump 7 sucks relatively clean liquid sulfur and air from the second cavity, then conveys the sulfur and the air into a dissolved air bag 2 connected with the dissolved air pump 7, then enters a dissolved air releaser 4 positioned in the first cavity 18 along a pipeline connected with the dissolved air bag 2, and releases air bubbles through the dissolved air releaser 4. The inside of the air flotation tank is provided with a discharge pipe 10 connected with the air flotation impurity discharge port 6, the discharge pipe 10 is provided with a plurality of impurity grooves 9 (figure 2) with upward openings, the tops of the impurity grooves 9 are large, impurities can be deposited well, and the impurity grooves 9 are communicated with the discharge pipe 10.

Specifically, the high-temperature dissolved air pump 7 is started, the high-temperature dissolved air pump 7 sucks relatively clean liquid sulfur from the purified liquid sulfur side, air which is about 10% of the volume flow of the pump is sucked in a negative pressure area of the pump, the liquid sulfur and the air enter the dissolved air bag 2 together, then the liquid sulfur and the air enter the dissolved air releaser 4 along a pipeline at the bottom of the air flotation tank 1 to release a large number of micro bubbles, the micro bubbles can be adhered to hydrophobic sulfur-melting particles in the rising process to form an air-carrying floccule with the density smaller than that of the water-melting sulfur, the impurities in the liquid sulfur are carried to the liquid level under the action of buoyancy, and after the impurities are gathered to a certain amount, the liquid level is raised through closing a valve at the liquid sulfur outlet, and the impurities deposited in the impurity tank 9 are discharged out of the air flotation tank through the discharge pipe 10. The dissolved air releaser 4 is the dissolved air releaser 4 with the existing structure, namely, a plurality of dissolved air releasing holes are arranged on the dissolved air releaser 4.

Because the solidifying point of the sulfur is 119 ℃, heat must be supplied through heat conducting oil in the whole working process, the temperature of all equipment is kept above 130 ℃, and the liquid sulfur is prevented from being condensed into solid.

The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements on the present invention without departing from the spirit of the present invention.

Claims

1. A high-temperature sulfur melting air-floating purification device comprises an air-floating tank and is characterized in that a heat-insulating jacket is at least arranged outside the air-floating tank, a heating channel for heat-conducting fluid flow is formed among the heat-insulating jacket, the air-floating tank and a pipeline, and a heat-conducting fluid inlet and a heat-conducting fluid outlet are formed in the heating channel; the air-float impurities are discharged from an air-float impurity discharge port arranged at the upper part of the air-float tank.

2. The high-temperature sulfur-melting air-flotation purification device as claimed in claim 1, wherein the heat-conducting fluid inlet on the heat-insulating jacket is arranged at the lower position of the heat-insulating jacket, and the heat-conducting fluid outlet is arranged at the top position of the heat-insulating jacket.

3. The high-temperature molten sulfur air-flotation purification device as claimed in claim 1, wherein a heat-insulating jacket is also arranged outside a pipeline connected with the air-flotation tank.

4. The high-temperature sulfur-melting air-flotation purification device as claimed in claim 1, wherein the heat-conducting fluid is heat-conducting oil, and the heat-conducting oil heats the purification device and maintains the temperature of the purification device at a temperature that ensures that the sulfur is in a fluid state.

5. The high-temperature sulfur melting air-floating purification device according to claim 1, wherein an air-floating impurity baffle is arranged in the air-floating tank, the air-floating impurity baffle divides the air-floating tank into two cavities, and an opening is arranged in the middle of the air-floating impurity baffle.

6. The high-temperature sulfur-melting air-floating purification device as claimed in claim 5, wherein the purification component comprises a dissolved air pump connected with the second cavity, the dissolved air pump is connected with a dissolved air bag, and the dissolved air bag is connected with a dissolved air releaser in the first cavity through a pipeline.

7. The high-temperature sulfur-melting air-floating purification device as claimed in claim 6, wherein a discharge pipe connected with the air-floating impurity discharge port is arranged in the air-floating tank, a plurality of impurity grooves with upward openings are arranged on the discharge pipe, and the impurity grooves are communicated with the discharge pipe.